Grid-Integrated Fleet & Workplace Charging for!Plug-in Electric Vehicles!

J.C. Martin Workplace Charging Challenge – Summit 2014

November 18, 2014

© 2011San Diego Gas & Electric Company. All copyright and trademark rights reserved.

SDG&E Goal – Grid Integrated Charging!

Create an excellent customer experience and accelerate the growth of electric transportation by ensuring the safe, reliable and efficient integration of EV loads with the grid

• More plug-in electric vehicles • More electric grid integrated miles

• Technology*

• Pricing

• Innovation*

• Education*

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San Diego Regional EV Growth!

• 11,278 EVs (56% BEV)

• 677 public charging stations (199 locations)

• 28 DC fast-chargers (10 in progress)

• 380 All-electric Car2Go fleet • 4,432 on SDG&E EV time-of use rate (41%)

October 2014"

 

Workplace Charging Commitment!

• CA Governor Jerry Brown’s  “Zero  Emission Vehicle Action  Plan”  

– “Drive  the  Dream”  commitment to  workplace  charging  pledge  – Fall 2013

• DOE Workplace Charging Challenge – SDG&E is a partner

– Achieve a tenfold increase in U.S. employers offering workplace charging in 5 years

• Over 70 SDG&E employees with PEVs (4,000 employees; 2,000 at HQ)

• SDG&E today: 50 EVSE (21 dedicated to fleet, 10 Vehicle-Grid Integrated)

• SDG&E by end of Q1 2015 about 150 Vehicle-Grid Integrated EVSE

– Up to 72 at SDG&E HQ (Century Park)

– Up to 75 at 13 other SDG&E facilities

– Five year EVSE expansion plans

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Minimize Cost & Maximize Accessibility!

8’  x 18’

EV Only

EV Only

EV Only

Spacing allows each charger to be used several

times each day, without moving cars – just move

the cord.

18’  cord length

EV Only

EV Only

EV Only

Employee Grid-Integrated Charging Pilot

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Employee Grid-Integrated Charging!System

• Communicating – utility-specified, time-variant prices, day-ahead"

• Pricing – opportunity to get lowest price and meet charging needs"

• Billing – directly to employee

Transformer Panel:

breakers, system meter

VGI charging management

(deliver lowest possible price)

Level 1 & 2 charging

Employee Grid-Integrated Charging Installation

Existing, upgraded or new transformer

Meter pedestal and breaker panel

10 EVSE separately metered

…

VGI Rate: Control electronics,

keypad and communications equip.

Grid-Integrated EV charging

and control

Primary Cable

Primary Conduit

Service Cable

Service Conduit

Customer Conduit

Customer Cable

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Employee Grid-Integrated Charging Phone App

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Electric Vehicle Grid Integration (EVGI) Pilot Proposal

• Pending proposal to introduce an hourly rate and EV charging infrastructure to efficiently integrate and manage charging loads with the grid

• Give EV customers the electricity they need at the best price possible

• Pending proposal to allow SDG&E to install EVGI enabling charging infrastructure in multi-family communities and places of work

– Best opportunity for grid-integrated charging due to long parking durations

• To greatest extent possible use third parties to build, install, operate and maintain EVGI charging system to SDG&E specifications

– Install 550 facilities (with 10 chargers each) over 5 years

• To have EV charging billed to  an EV drivers’ SDG&E  bill

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Questions?!

J.C. Martin"

Clean Transportation"

858-654-1162"

JCMartin@SempraUtilities.com"

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